body {
    margin: 0;
    display: flex;
    flex-direction: column;
    height: 100vh;
    font-family: Arial, sans-serif;
    color: #333;
}


#messages {
    flex: 1;
    overflow: hidden;
}

#messages iframe {
    width: 100%;
    height: 100%;
    border: none;
}

#messageForm {
    flex: 0 0 auto;
    padding: 10px;
    background-color: #ffffff;
    border-top: 1px solid #ccc;
    width: 95%;
    margin: 0 auto;
}

#messageForm label {
    font-weight: bold;
}

#messageForm input[type="text"],
#messageForm textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    margin-top: 5px;
}

#messageForm input[type="text"] {
    height: 0.5em;
    width: 10%;
}

#messageForm textarea {
    height: 5em;
    width: 95%;
}

#messageForm input[type="submit"] {
    background-color: #ccc;
    color: #333;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 10px;
}

#messageForm input[type="submit"]:hover {
    background-color: #999;
}

#signature {
    width: 20%;
    margin-top: 10px;
}

#signature input[type="text"] {
    height: 2em;
}
